Cigar machine or the like



Mar 5, 1935. K. E. GRANSTEDT CIGAR MACHINE OR THE LIKE Filed Oct. 50, 1931 2. Sheets-Sheet 1 I2 /0 1e 24 11/ v INVENTOR v 6w! 0 ATTORNEYS.

March 5, 1935. K. E. GRANSTEDT CIGAR MACHINE OR THE LIKE Filed Oct. 30, 1931 2 Sheets-Sheet 2 ATTORNEYS. I

Patented Mar. 5, 1935 UNITED STATES CIGAR MACHINE OR THE LIKE Karl Erik Granstedt, Stockholm, Sweden, as-

signor to Aktiebolaget Formator, Stockholm, Sweden, a Swedish joint sto'ck company Application October 30,

1931, Serial No. 512,179

In Sweden November 18, .1930

13 Claims.

The present invention refers to such machines or devices, which are'provided with a suction element intended to take up and'keep by means of sub-atmospheric pressure thin objects, for in- 5. stance leaves, sheets or the like of various kinds. The invention is especially intended to be adapted for leaf carrying devices in cigar machines of the kind,'where the leaf carrier consists of a suction chamber, which has a mouth-piece provided with bottom plate of the suction surface and enter into the "suction holes, so that some of these become entirely or partly clogged.

Therefore it has up till now been necessary for the cleaning of the bottom plate to remove the same very often, sometimes many times a day, which causes interruption in the work.

By means of the improvements which are the object of the present invention, this inconvenience is removed.

A device according to the invention consists of a suction and collecting container or the like provided with an opening at the top, which each' 35 time during the run of the machine that the leaf carrier goes back to a leaf receiving place automatically moves upwards close to the bottom plate of the leaf carrier now standing still and at the same time opens the communication be- 40 tween the container and a vacuum tube. After having executed its suctioneifect on the bottom plate it returns to the starting-point, and said communication is released. v I

A preferred embodiment of the invention is illustrated in the accompanying drawings.

Fig. 1 shows a vertical end elevation, and partly a vertical cross section of a device according to the invention.

Fig. 2 shows a vertical, longitudinal section,

50 and. partly a vertical side elevation of the same device.

Fig. 3 shows a plan view and partly a cross section of the same device.

Fig. 4 shows diagrammatically the arrangement of the leaf carrier, a vacuum source and the cleaning device.

A leaf carrier 1 communicates with its inner parts with a vacuum source. The carrier is swivelled on an arm 3 of well known construction, part of which is shown in Figs. 1 and 2. A

suction holes which have the shape of a wall or bottom plate2 is provided with suction holes 2 communicating the inner space of the leaf carrier with the spacesurrounding said carrier.

At a place where the leaf carrier 1 is at a standstill for a moment on its travelling movement from the wrapping device to the leaf cutting device, a vacuum container 41s provided. The upper wall of the container consists of a plate 5 of rubber or any other elastic material. In the plate 5 is an opening 6, the shape of which is accommodated to the shape of the part of the bottom plate, which is to be cleaned. The edge of the opening 6 should stretch itself somewhat inside the edge of the bottom plate 2, when the container 4 acts upon the leaf carrier.

The co'ntaineris fixed by means of a screw 8 to a tubular rod '7. The rod '7 is guided by a horizontal frame 9 and articulated to a lever 10 by means of a pin 12. The lever is movably connectedto the frame 9 by'means of standards 11, and a shaft 15. The axial position of the lever in relation to the shaft is determined by stop rings 16. The lever is also provided with a projection such as a roller 13 which projects into a curve-shaped notch 14 in a disk 14, which latter is fixed to a driving shaft 1'7. Said driving shaft is journaled in standards 18 attached to the lower side of the frame 9. I

The tubular rod"? projects with its upper end into the'upper part of the container 4, where it is provided with openings 20 and a cap 19 above said openings. Moreover, the rod is provided with openings '21 near its lower end. The openin'gs 21 communicate the interior of the rod 7 and thereby the interior of the container 4 with a vacuum chamber 22 on the lower side of the frame 9. The vacuum chamber communicates with a vacuum source through a channel 24 conveniently with the same vacuum source, that effects sub-atmospheric pressure within the leaf carrier. the leaf carrier 3 by'means-of a conduit 26. The container is provided with a threaded bore closed by a screw 23 in order to enable the draining of the container. i

The device now described operates in the following manner":

When the leaf carrier has been brought to a standstill for a moment during its movement from a wrapping device to a cutting device (where a Wrapper is to be fetched) in a fixed position-above the cleaning device, the container 4 is moved upwards by therod 7. This is attained by means of the disc 14 with its curve shaped notch acting upon the roller 13, which lifts the lever 10, which latter is pivoted at-15 in themanner that the pin 12 ascends with the rod '7. This ascending motion continues until the top plate 5 is pressed against the lower (or suction) side of the bottom plate 2 in such a position that all the suction holes The vacuum. source 25 is connected to' 2 are covered by the plate 5 and their lower openings communicate with the interior of the container 4 through the opening 6. In the meantime the openings 21 at the lower end of the rod '7 have been brought into communication with the vacuum chamber 22, whereby obviously the interior of the container is put into. a. stateof sub-atmospheric pressure. Thus paste which adheres on the under side ofthe plate'2 or in the holes 2 is sucked down into the container 4, and is collected at its bottom. The cap 19 prevents paste or other particles from entering the tubular rod '7 through the holes 20. Of course, the leaf carrier 1 must in the meantime be shut off from its leaf carrying suction and this occurs suitably automatically in any suitable known way. When the container has been at rest for a suflicient long time so that all foreign particles are sucked off from the plate 2 in front of the opening 6 of the plate 5, the rod 7 with the container 4 descends under the influence of the rotating curved disc 14, and the openings 21 come out of communication with the vacuum chamber 22, whereby the vacuum within the container 4 is released. I

I do not wish to limit my, invention to the details of construction above mentioned, as there are several other embodiments within the scope of the invention. Thus an air current may be blown from the leaf carrier through the holes 2 into the container 4 (which latter can in such case be dispensed with). Besides the cleaning device may be adapted also for machines of other kinds than cigar machines i. e. for machines in which sheets of paper etc. are carried by any element, which is to be cleaned.

What I claim is:

1. In a cigarv machine, a movable wrapper carrier having a perforated suction surface, a vacuum-cleaner having a suction'member, and means for imparting movements to the suction member to and from said suction surface.

2. In a cigar machine, a movable wrapper carrier having a perforated suction surface, a vacuum-cleaner having a suction member, means for imparting movements to the suction member to and from said suction surface, and means for automatically cutting off the suction in said member when it is removed from the suction surface;

3. In a cigar machine, a movable wrapper carrier having a perforated suction surface, a vacuum-cleaner having a suction member, means for imparting movements to the suction member to and from said suction surface, and automatic means for cutting off the suction in said member when it is removed from the suction surface and creating suction when it is moved against said surface.

4. In a cigar machine, a movablev wrapper carrier having a perforated suction surface, a vacuum-cleaner comprising a hollow suction member, means for imparting movements to the suction member to and from said suction surface,.a pipe connected to said suction member and having openings connecting its interior with the interior of said suction member, and a suction chamber, said pipe having openings for connecting its interior with said suction chamber when the suction member is moved against the suction surface.

5. In a cigar machine, a movable wrapper carrier having a perforated suction surface, a vacuurn-cleaner comprising a hollow suction member, a. suction chamber, a pipe carryingvthe suction member and provided with openings connecting its interior with said member and other openings for connecting its interior with the suction chamber', a lever pivotally connected to said pipe, and a rotatable curved disc for imparting swinging movements to said lever and thereby moving the suction member to and from the perforated suction surface.

6. In a cigar machine, a movable wrapper carrier having a perforated suction surface, a vacuum-cleaner having a suction container for removed particles, said container having an aperture, and means for engaging the aperture of the container with said suction surface.

'7. In a cigar machine, a wrapper carrier and a vacuum-cleaner having a relative crossing movement, said wrapper carrier having a perforated suction surface and said vacuum-cleaner having a suction member adapted to engage said suction surface.

8. In a cigar machine, a wrapper carrier and a vacuum-cleaner havingarelative crossing movement, said wrapper carrier having a perforated suction surface and said vacuum-cleaner having a suction member adapted to act upon said suction surface and a collector for removed particles.

' 9. In a cigar machine, a wrapper carrier and a vacuum-cleaner having a relative crossing movement, said wrapper carrier having a perforated suction surface and said vacuum-cleaner being provided with a container adapted to receive removed particles and having an aperture adapted to engage said suction surface.

10. In a cigar machine, a wrapper carrier and a'vacuunvcleaner having a relative crossing movement, said wrapper carrierhaving a perforated suction surface and said vacuum-cleaner having a suction member adapted to act upon said suctionsurface and being connected to a vacuum source for creating suction in the wrapper carrier. p

11. In a cigar machine, a wrapper carrier and a vacuum-cleaner having a relative crossing movement, said wrapper carrier having a perforated suction surface and said vacuum-cleaner comprising a hollow suctionzmember adapted to act upon said suction surface, a pipe connected to said suction member, one end of said pipe communicating, with a vacuum source, its other end projecting into said suction member and havin openings connecting its interior with the interior of said suction member, and a capprovided on said pipe above said openings.

12. In a cigar machine, a movable wrapper carrier and a vacuum-cleaner having a relative crossing movement, said wrapper carrier having a perforated suction surface and said vacuumcleaner having means adapted to create suction upon said suction surface.

13. In a cigar machine, a wrapper carrier and a vacuum-cleaner having a relative crossing movement, said wrapper carrier having a perforated suction surface and said vacuum-cleaner being provided with a container adapted to receive removed particles and having an aperture communicating with means adapted to create suction upon said suction surface.

KARL ERIK GRANSTEDT. 

